JPS579526A - Manufacture of square shaped metallic tube through convex roll - Google Patents
Manufacture of square shaped metallic tube through convex rollInfo
- Publication number
- JPS579526A JPS579526A JP8445180A JP8445180A JPS579526A JP S579526 A JPS579526 A JP S579526A JP 8445180 A JP8445180 A JP 8445180A JP 8445180 A JP8445180 A JP 8445180A JP S579526 A JPS579526 A JP S579526A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- welding
- square shaped
- rolls
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To produce a square shaped metallic tube efficiently and with a slight inflicted change in the mechanical property of material by guiding a corner-bended blank material of a square shaped tube to welding rolls, performing butt welding its edges and leveling four side faces.
CONSTITUTION: A beltlike material 1 is bent at positions 4, 4 so as to leave widths in both end parts by an upward cornerbending roll 3, the middle part of 4, 4 is then bent so as to make right and left sides and a downward side. Then, forcing a fin roll 9a into a gap between edges of upward opening, and pushing a blank material in a caliber consisting of a frange roll 9b, right and left side rolls 9c and a lower roll 9d from 4 sides, thereby its cross section gets near a square shape. A welding roll 10 is then screwed-down and is fitted to the upper and lower rolls and right and left side rolls, then performing an electric butt welding the edge of the downward opening, thereby, a square shaped metallic tube 12 having a welding juncture 11 on its upward side face is made. This tube 12 is adjusted its sectional shape and its longitudinal shape through a Turk's head roll 13 for leveling, and is cut by a desired length to make a product.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8445180A JPS579526A (en) | 1980-06-21 | 1980-06-21 | Manufacture of square shaped metallic tube through convex roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8445180A JPS579526A (en) | 1980-06-21 | 1980-06-21 | Manufacture of square shaped metallic tube through convex roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS579526A true JPS579526A (en) | 1982-01-19 |
| JPS643568B2 JPS643568B2 (en) | 1989-01-23 |
Family
ID=13830974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8445180A Granted JPS579526A (en) | 1980-06-21 | 1980-06-21 | Manufacture of square shaped metallic tube through convex roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579526A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58224084A (en) * | 1982-06-21 | 1983-12-26 | Teruyoshi Imamura | Manufacture of square-shaped electric welded steel pipe |
| KR100332736B1 (en) * | 1999-09-16 | 2002-04-17 | 김민 | a quadrilateral pipe manufacturing apparatus |
-
1980
- 1980-06-21 JP JP8445180A patent/JPS579526A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58224084A (en) * | 1982-06-21 | 1983-12-26 | Teruyoshi Imamura | Manufacture of square-shaped electric welded steel pipe |
| JPS6323857B2 (en) * | 1982-06-21 | 1988-05-18 | Teruyoshi Imamura | |
| KR100332736B1 (en) * | 1999-09-16 | 2002-04-17 | 김민 | a quadrilateral pipe manufacturing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS643568B2 (en) | 1989-01-23 |
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